VI.—Copper, 23.33 parts; zinc, 10 parts; silver, 66.67 parts.
VII.—Copper, 26.66 parts; zinc, 10 parts; silver, 63.34 parts.
VIII.—Silver, 66 parts; copper, 24 parts, and zinc, 10 parts. This very strong solder is frequently used for soldering silver articles, but can also be used for soldering other metals, such as brass, copper, iron, steel band-saw blades, etc.
IX.—Silver, 4 parts, and brass, 3 parts.
X.—A very refractory silver solder, which, unlike the silver solder containing zinc, is of great ductility and does not break when hammered, is composed of 3 parts silver and 1 part copper.
Soft Silver Solders.
II.—Silver, 1 part, and brass, 1 part; or, silver, 7 parts; copper, 3 parts, and zinc, 2 parts.
III.—A readily fusible silver solder for ordinary work: Silver, 5 parts; copper, 6 parts, and zinc, 2 parts.
IV.—(Soft.) Copper, 14.75 parts; zinc, 8.20 parts; silver, 77.05 parts.
V.—Copper, 22.34 parts; zinc, 10.48 parts; silver, 67.18 parts.